Precalculus : graphs and models : a unit circle approach / Marvin L. Bittinger ... [et al.]. - Boston : Addison-Wesley, c2001. - xviii, 793 p. : ill. (some col.) ; 26 cm. Includes index. ISBN: 0201616750 LCCN: 00059448 Subjects--Topical Terms: Algebra.Algebra--Graphic methods.Trigonometry.Trigonometry--Graphic methods. LC Class. No.: QA154.2 / .P725 2001 Dewey Class. No.: 512